3-2871015-C-T

Position:

• chr3-2871015-C-T

Variant summary

Our verdict is Benign. Variant got -12 ACMG points: 0P and 12B. BP4_Strong BA1

The NM_175607.3(CNTN4):​c.652+4066C>T variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.914 in 152,144 control chromosomes in the GnomAD database, including 63,666 homozygotes. In-silico tool predicts a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency: Genomes: 𝑓 0.91 (63666 hom., cov: 30)
• Consequence: CNTN4 NM_175607.3 intron
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.175

Genes affected

CNTN4 (HGNC:2174): (contactin 4) This gene encodes a member of the contactin family of immunoglobulins. Contactins are axon-associated cell adhesion molecules that function in neuronal network formation and plasticity. The encoded protein is a glycosylphosphatidylinositol-anchored neuronal membrane protein that may play a role in the formation of axon connections in the developing nervous system. Deletion or mutation of this gene may play a role in 3p deletion syndrome and autism spectrum disorders. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2011]

CNTN4 (HGNC:):

ACMG classification

Verdict is Benign. Variant got -12 ACMG points.

• BP4: Computational evidence support a benign effect (BayesDel_noAF=-0.88).
• BA1: GnomAd4 highest subpopulation (EAS) allele frequency at 95% confidence interval = 0.951 is higher than 0.05.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
CNTN4	NM_175607.3	c.652+4066C>T		intron_variant		ENST00000418658.6	NP_783200.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
CNTN4	ENST00000418658.6	c.652+4066C>T		intron_variant		5	NM_175607.3	ENSP00000396010.1

Frequencies

GnomAD3 genomes AF: 0.914 AC: 138977 AN: 152026 Hom.: 63618 Cov.: 30

Gnomad AFR AF: 0.953

Gnomad AMI AF: 0.857

Gnomad AMR AF: 0.942

Gnomad ASJ AF: 0.928

Gnomad EAS AF: 0.974

Gnomad SAS AF: 0.865

Gnomad FIN AF: 0.881

Gnomad MID AF: 0.921

Gnomad NFE AF: 0.888

Gnomad OTH AF: 0.934

We have no GnomAD4 exomes data on this position. Probably position not covered by the project.

GnomAD4 genome AF: 0.914 AC: 139081 AN: 152144 Hom.: 63666 Cov.: 30 AF XY: 0.914 AC XY: 67955 AN XY: 74344

Gnomad4 AFR AF: 0.953

Gnomad4 AMR AF: 0.942

Gnomad4 ASJ AF: 0.928

Gnomad4 EAS AF: 0.974

Gnomad4 SAS AF: 0.864

Gnomad4 FIN AF: 0.881

Gnomad4 NFE AF: 0.888

Gnomad4 OTH AF: 0.935

Alfa AF: 0.898 Hom.: 78181

Bravo AF: 0.922

Asia WGS AF: 0.924 AC: 3213 AN: 3478

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.88
CADD	Benign	3.4
DANN	Benign	0.77

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.0		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs4234555; hg19: chr3-2912699;